Table 3 Mammographic density change by case-control status.
From: The impact of changes in breast density over time on breast cancer risk
Mammographic density types | Case group n (%) | Control group n (%) | p-value |
|---|---|---|---|
D → D | 12 (5%) | 2 (1%) | |
D → C | 105 (41%) | 75 (19%) | |
D → B | 48 (19%) | 131 (33%) | |
C → C | 3 (2%) | 3 (1%) | |
C → B | 85 (33%) | 179 (46%) | |
Mammographic density changes by case-control status in the premenopausal period | 0.04 | ||
D → D | 10 (10%) | 2 (1%) | |
D → C | 51 (50%) | 67 (30%) | |
D → B | 25 (25%) | 96 (42%) | |
C → B | 15 (15%) | 60 (27%) | |
Mammographic density changes by case-control status in the postmenopausal period | 0.6 | ||
D → D | 2 (1%) | 0 (0%) | |
D → C | 54 (36%) | 8 (5%) | |
D → B | 23 (15%) | 35 (21%) | |
C → C | 3 (2%) | 3 (2%) | |
C → B | 70 (46%) | 119 (72%) | |
